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Goodness of fit (R2-value) and the connection density of the networks derived by PLWT under different significance level (α = 0.0001, 0.001, 0.005, 0.01, 0.05) in four frequency bands (theta, alpha, beta and gamma bands). a Goodness of fit (R2-value) between the degree distribution and the power-law distribution of PLWT, b connection density of PLWT-derived networks
